Just purchased mine this weekend. Got $9700 off of MSRP. Includes $3500 ECO, $1500 options, $1000 loyalty discount. Even on a dealer trade from SoCal. Plus I add my $500 BMWCCA rebate, I'll have gotten over $10K off.
This was for a new car with 15 miles on it. Some of the numbers I see above don't have much detail, could have been a loaner car with miles on it.
I think my deal could easily be had by others. Especially on a car on the lot before 12/31/11. I was picky and didn't want to settle, thus the dealer trade.
Good luck to everyone looking. The 335d is the best kept secret among enthusiasts!